No way to tell...but it usually takes several months for the IRS to ,match up the info from the various employers, to what the individuals claim on their tax files....so I think you should be OK.
Just make sure you wait until your Federal and state tax files have been "Accepted"...and then, any refund received....or any tax payments made if you owed more taxes...all before you start the amended process....those refunds, or expected payments can't be waylaid by the amended tax return.
If you've e-filed...but they Federal filing gets "rejected" then you don't amend...you just edit in the new W-2 data....and fix the reason for the rejection....then re-e-file.
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Yeah, that happened to me when I retired. A whole 2yrs later, I got an unexpected W-2 for some ~$750 company benefit payment that came out the tax year after I retired.
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